Comparison

Thevenin vs Voltios

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Thevenin

Instantly solve and understand electrical circuits with AI. Scan diagrams from textbooks or notes to get step-by-step solutions for DC/AC circuits, equivalents, and more. Designed for engineering students to grasp concepts and prepare for exams.

Highlights
  • Instant circuit scanning
  • Step-by-step solution breakdown
  • Support for DC/AC circuits
  • Thevenin/Norton equivalents
  • Nodal and mesh analysis
  • Op-amp and BJT analysis
  • High-accuracy component detection
Features
Read full description

Thevenin AI is the fastest way to solve and understand STEM problems. Scan any problem and get a complete, step-by-step solution in seconds. Built for real STEM coursework — circuits, physics, chemistry, and more — not generic math. No guessing. No skipped steps. Just clear solutions you can follow. What you can do: Scan any STEM problem instantly Capture problems from textbooks, homework, labs, or handwritten notes. Thevenin AI detects equations, diagrams, circuits, structures, and values with high accuracy. See full step-by-step solutions Every solution is broken into structured, numbered steps so you can understand exactly how the answer is derived. Solve across STEM subjects Circuits (DC and AC, Thevenin and Norton equivalents, nodal and mesh analysis, op-amps, BJTs), physics (kinematics, forces, energy, electromagnetism, thermodynamics), chemistry (stoichiometry, equilibrium, reaction balancing, thermochemistry), and more. Understand, not memorize Go beyond answers. Learn the method behind each solution so you can apply it on exams. Built for real STEM students and engineers Designed around actual coursework. Works on messy diagrams, lab sketches, chemical structures, and real exam-style problems. Why Thevenin: Saves hours on assignments Removes trial and error Improves conceptual understanding Helps you prepare for exams faster Works when solution manuals don't Speed and performance: Full solution with steps in under 15 seconds for most problems High-accuracy recognition across equations, diagrams, and circuits Handles complex, multi-step problems Who it's for: STEM students and engineers Anyone taking circuits, physics, chemistry, electronics, or systems courses Students who want to actually understand the material, not just get answers Start solving Scan your problem Get the full solution Understand every step Download Thevenin, the AI for solving STEM, and turn any problem into a complete solution instantly. Terms of Service: https://www.thevenin.ai/terms.html Privacy Policy: https://www.thevenin.ai/privacy.html End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Voltios

A puzzle game that teaches the fundamentals of electricity through interactive circuit building. Explore various electrical concepts like switches, short circuits, and Ohm's law in a visually engaging and playful manner. Designed for families with no ads or tracking, offering a complete learning experience with a single purchase.

Highlights
  • Interactive circuit building
  • Learn electrical concepts visually
  • Explore switches, fuses, and Ohm's law
  • 68 levels across 9 worlds
  • Offline play
  • No ads or tracking
Features
Currently charting
Read full description

Build circuits, light up the world. Voltios is a puzzle game for learning electricity visually. Connect wires, close switches and watch what changes: a bulb lights up, a motor spins or a fuse protects the circuit. LEARN BY DOING • Discover why current needs a closed circuit. • Experiment with switches, conductors and insulators. • Avoid short circuits and learn how to use fuses. • Compare series and parallel circuits. • Explore Ohm's law and measure voltage and current with the multimeter. 10 WORLDS, 78 LEVELS Keep the original 68 campaign levels and discover 10 new levels in Laboratory, available after completing World 5. All content is included in the app purchase and opens through gameplay progression. First Sparks · Switch It! · Danger: Short Circuit · Measure & Choose · Ohm's Law · Circuit Master · Clocks & Crossings · Real Life · Magnets & Motors · Laboratory. EXPERIMENT AT YOUR OWN PACE • Component explanations, hints and learning recaps. • A daily challenge to keep practising. • A refreshed interface and a multimeter integrated into the board. • English and Spanish. For iPhone and iPad with iOS/iPadOS 17 or later. ONE APP PURCHASE No subscriptions, in-app purchases or ads. No Voltios account required. Gameplay works offline; iCloud, Game Center and sending analytics require a connection. Progress is saved on your device and synced through iCloud when available. Game Center is optional and retains the original campaign achievements. We use TelemetryDeck for interaction analytics with anonymized identifiers, without advertising tracking. See our privacy policy for details.

Screenshots

Thevenin4 screens
Voltios4 screens

Verdict

The call

The clearest difference is price: Thevenin at Free against Voltios's $0.99. Thevenin also leads on update cadence (every 3 days vs every 2 weeks) and ratings volume (11 vs 2). Voltios's advantage is rating (5.0 vs 4.3) and chart position (#166 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Thevenin is free to download; Voltios costs $0.99 up front. Thevenin sells 2 in-app purchases, starting at $4.99 per month and Voltios sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Voltios holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Thevenin has 11 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Thevenin ships an update every 3 days, Voltios every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 5 level
Thevenin versus Voltios: the parameters behind the verdict, then further details
ParameterTheveninVoltios
PriceFree — better$0.99
Rating4.3 (11 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings11 — better2
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterPaid
Best chart rank—#166 — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size43 MB6 MB
Age rating4+4+
DeveloperThafier MahmoodIgnacio Noguerol Sicilia

Customer experience

Thevenin

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Voltios

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Thevenin

Subscriptions2
  • Pro$4.991 Month
  • Pro3 Days trial$29.991 Year
1 purchases

Voltios

One-time1
  • Full Game$4.99

Questions

Is Thevenin free?
Thevenin is free to download, with in-app purchases available.
Is Voltios free?
Voltios costs $0.99, and also offers in-app purchases.
Which has better reviews, Thevenin or Voltios?
Voltios is rated higher. Thevenin averages 4.3 out of 5 from 11 ratings, while Voltios averages 5.0 from 2 ratings.
Do Thevenin or Voltios have ads?
Neither Thevenin nor Voltios shows ads.
Which is updated more often, Thevenin or Voltios?
Thevenin ships an update every 3 days, and Voltios every 2 weeks. Most recently, Thevenin was updated on October 24, 2026 and Voltios on October 25, 2026.

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